Answer:
s²+2s-80
Step-by-step explanation:
First (first in each parentheses)
Outside (the two terms on the outside of the expression)
Inside (the two terms in the inside of the expression)
Last (last in each parentheses)
An example:
(a+b)(c+d)=ac+ad+bc+bd
Therefore...
(s+10)(s-8)=(s)(s)+(s)(-8)+(10)(s)+(10)(-8)=s²-8s+10s-80=s²+2s-80
There's a positive correlation between the amount of fertilizer a homeowner uses
and the height of the plants in her garden.
Which statement is true?
The correlation is most likely a causation.
The correlation is most likely a coincidence.
The correlation is most likely due to a lurking variable.
Answer:
The correlation is most likely a causation
Step-by-step explanation:
Causation
A change in one variable causes a change in another variable
Coincidence
The two variables are not related at all, but correlate by chance.
Lurking variable
A variable that is not measured in the study (i.e. it's a third variable that is neither the explanatory nor the response variable)
As fertilizer directly affects plant growth, then the correlation is most likely a causation
calculate without using calculate 25/√37-12
Answer:
5
Step-by-step explanation:
[tex]\frac{25}{\sqrt{37-12} }[/tex]
= [tex]\frac{25}{\sqrt{25} }[/tex]
= [tex]\frac{25}{5}[/tex]
= 5
Yesterday morning Kimberly had 48 dollars. She first spent 3/4 of it at the mall. She counted her
money. Later, she went to the movies and spent 1/3 of what was left after her shopping. How much
money does she have now?
Answer:
$8.00
Step-by-step explanation:
Based on the given conditions, formulate:
[tex]48[/tex] × [tex](\frac{1}{3}-1)[/tex] × [tex](\frac{3}{4}-1)[/tex]
Apply the Distributive Property:
[tex](48[/tex] × [tex]\frac{1}{3}+48[/tex] × [tex](-1))[/tex] × [tex](\frac{3}{4}-1)[/tex]
Apply Multiplicative Distribution Law:
[tex](16-48)[/tex] × [tex](\frac{3}{4}-1)[/tex]
Calculate the sum or difference:
[tex]-32[/tex] × [tex](\frac{3}{4}-1)[/tex]
Apply the Distributive Property:
[tex]-32[/tex] × [tex]\frac{3}{4}-32[/tex] × [tex](-1)[/tex]
Apply Multiplicative Distribution Law:
[tex]-24+32[/tex]
Calculate the sum or difference:
[tex]8[/tex]
What is the solution to the equation below?
4 + square root 6x + 4 = 8
[tex]4+ \sqrt{6x + 4 = 8} [/tex]
[tex] \sqrt{6x + 4 = 4}[/tex]
[tex]6x + 4 = 16[/tex]
[tex]6x = 12[/tex]
[tex]x = \frac{12}{6} = 2[/tex]
Option C is correct, x=2 is the solution to the equation 4+√(6x+4)=8
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The given equation is 4+√(6x+4)=8
We have to solve for x
Subtract 4 from both sides
√(6x+4)=4
Square on both sides
6x+4=16
Subtract 4 from both sides
6x=12
Divide both sides by 6
x=2
Hence, Option C is correct, x=2 is the solution to the equation 4+√(6x+4)=8
To learn more on Equation:
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Solve for x: 1/6(6x+12)+5x>26
How do I solve this problem?
Answer:
M. E. = +_2.086
Step-by-step explanation:
How do I solve this problem?
Translate the sentence into an equation. Three less than the product of 6 and a number equals 4. Use the variable b for the unknown number.
Answer:
(6 x b) - 3 = 4
Step-by-step explanation:
or you can do 6b - 3 = 4
PLEASE HELP, Will give brainliest
Answer:
the first four terms are 2, 4, 6, and 8
Step-by-step explanation:
the y intercept becomes the first term. the for each value y increases by 2, this is the common difference.there are two ways you can get it. the by using equation of linear graphs y=mx+c and another by using the formula of AP Tn=a+(n-1)d.
both m(slope) and common difference(d) means the same thing.
I WILL GIVE BRAINLIEST
please help i’m so tired i’m gonna cry
1)) Select the expressions that
are equivalent to 5(7m + 7) - 9.
35m + 26
5(-9m + 16m + 7) - 9
7m + 26
(7m + 7)5 - 9
Answer:
a) 35m+26
Step-by-step explanation:
5(7m+7)-9
= 35m+35-9
=35m+26
Hope this helps!
Answer:
Step-by-step explanation:
5(7m + 7) - 9
= 5*7m + 5 * 7 - 9
= 35m + 35 - 9
= 35m + 26
answers: 1st, 2nd, and 4th choices
An article reports that men over 6 feet tall earn more than men under 6 feet, with these numbers: average 6 foot plus male’s salary $55,000, average male’s salary under 6 foot tall of $47,000, with a p-value of 0.45. Based on that reported p-value, and using the common definition of "statistical significance," which is the case?
Answer:
D
Step-by-step explanation:
as the p value is 0.45 > 0.05 so the report that men over 6 feet tall earn more then men under 6 feet tall is accepted. So the salary differences are statistically signifcant
Question 1 options:
What is the length of MN¯¯¯¯¯¯¯ ? Important to have calculator in degree mode. Round answer to tenths.
Find all integers greater than 3 but less than 10
____________________________________
Step-by-step explanation:
Set up: 3<x<10
An integer is a positive or negative number that doesn't include a fraction, or decimal.
Fun Fact: 0 can be an integer too!
x represents the unknown integer.
Integers greater than 3, but less than 10 are:
3<4<103<5<103<6<103<7<103<8<103<9<104, 5, 6, 7, 8, and 9 work as possible integers.
Solve for x.
−4/5x+3/10<8/10
Answer:
x > -5/8
Step-by-step explanation:
Simplify by combining x and 4/5 and then moving 4 to the left side of x
-x * 4/5 + 3/10 < 8/10
-4x/5 + 3/10 < 8/10
Now we cancel the common factor of 8 and 10.
Factor 2 out of 8
-4x/5 + 3/10 < 2(4)/10
2 from 10
-4x/5 + 3/10 < 4/5
Now move all the terms not containing x to the right side
Lets subtract 3/10 from both sides
-4x/5 < 4/5 - 3/10
Now we multiply by 2/2 to write 4/5 with a common denomi.
-4x/5 < 4/5 * 2/2 - 3/10
Now write with a common denom of 10 and multiply by 1
-4x/5 < 4*2/5 * 2 - 3/10
5 by 2
-4x/5 < 4 * 2/10 - 3/10
Combine
-4x/5 < 4 * 2 - 3/10
Simplify the numerator by multiplying then subtracting
-4x/5 < 8 - 3/10
-4x/5 < 5/10
Cancel the common factor of 5 and 10...
-4x/5 < 5(1)/10
-4x/5 5* 1/5 * 2
-4x/5 < 1/2
Now we divide by -1
-4x/5)/-1 > 1/2)/-1
4x/5 > 1/2)-1
4x/5 > -1/2
Multiply both sides by 5 and cancel common factors. (5)
4x * 5 > -1/2 * 5
4x > -1/2 * 5
4x > -5/2
Now divide by 4 in each term
4x/4 > -5/2)/4
x > -5/2)/4
Multiply the numer by the reciprocal of the denom
x > -5/1 * 1/4
x > -5/4 * 2
x > -5/8
Two pools are being filled with water. To start, the first pool contains 2164 liters of water and the second pool contains 2500 liters of water. Water is being added to the first pool at a rate of 31.75 liters per minute. Water is being added to the second pool at a rate of 21.25 liters per minute.
After how many minutes will the two pools have the same amount of water?
How much water will be in each pool when they have the same amount?
The amount of water in each pool at a particular time are illustrations of linear functions
Both pools will have the same amount of water after 32 minutesBoth pools will have 3180 liters at 32 minutesHow to determine the time they have the same amountFor the first pool, we have the following parameters
Initial amount = 2164 litersRate = 31.75 liters per minuteSo, the equation of the amount of water in the pool is:
y = 2164 + 31.75x
For the second pool, we have the following parameters
Initial amount = 2500 litersRate = 21.25 liters per minuteSo, the equation of the amount of water in the pool is:
y = 2500 + 21.25x
When both pools have the same amount of water, we have:
2164 + 31.75x = 2500 + 21.25x
Collect like terms
31.75x - 21.25x = 2500 - 2164
Evaluate the like terms
10.5x = 336
Solve for x
x = 32
This means that they will have the same amount of water after 32 minutes
Substitute 32 for x in y = 2164 + 31.75x
This gives
y = 2164 + 31.75 * 32
y = 3180
Both pools will have 3180 liters at 32 minutes
Read more about linear functions at:
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What is the solution given the expression
216^2/3
36
6
108
12
Answer:
36
Step-by-step explanation:
Noticing that 216 = 6^3 and using (x^a)^b = x^ab
216^2/3 = (6^3)^2/3 = 6^3 times 2/3 = 6^2 = 36
In a bus of 40 passengers, the number of women is 7 times more than the number of men. How many women are on that bus? Explain your answer.
Answer: is 5
Step-by-step explanation:
x is the missing number for women women are 7 times more than the number of men
So you do x times 7, which is 7x
Then you add them together
x + 7x = 8x
8x = 40
At last you divide 40 by 8
And the answer is 5
The radius of a semicircle is 1 kilometer. What is the semicircle's area?
Answer:
1.6
Step-by-step explanation:
area of a semicircle is A = pi * r^2/2
So pi*1^2/2
3.14/2
1.57079632679
Rounded to the nearest tenth
1.6
A radioactive material has a half life of 7 minutes, how long until there is 5% of the material remaining?
The population of a Midwest industrial town decreased from 213,000 to 209,000 in just 2years. Assuming that this trend continues, what will the population be after an additional 3 years?
Answer:
203,000
Step-by-step explanation:
You need to find the pattern first, so you need to subtract 213,000 from 209,000 to get 4,000. Now that is the pattern for 2 years we need it for 1 year. So divide 4,000÷2=2,000 for 1 year. Next, you need to multiply 2,000×3=6,000. That is the decrease of the population for 3 years. Finally, subtract 6,000 from 209,000.
Hope you get an A! <3
SOLVE & SHOW YOUR WORK !!!!
Answer:
x = 6
y = 5.5
Step-by-step explanation:
Since the shapes are similar:
A = E and
C = G
60+8x = 108 subtract 60 from both sides
8x = 48 divide both sides by 8
x = 6
8y - 3x = 62 we know x is 6
8y - 3*6 = 62
8y - 18 = 62 subtract 18 from both sides
8y = 44 divide both sides by 8
y = 5.5
Help help ASAP please
Answer:
y = -4x + 15
Step-by-step explanation:
slope of y = x/4 - 2 is 1/4
slope of line perpendicular to above line is -4
so y = -4x + b
use (4, -1)
-1 = -4(4) + b
b = 16 - 1 = 15
so
y = -4x + 15
Lesson 13 Exit Ticket 5.4
Name
Date
1. Solve. Draw a rectangular fraction model, and write a number sentence to show your thinking.
I do not know how to do this
A rectangular fraction model can be drawn based on this idea: Annie had a total of cookies 20 but she gave 9 cookies to her friends, how many cookies does she have?
What is a rectangular fraction model?A rectangular fraction model refers to using a rectangle and dividing it to represent and understand fractions. This might be easier than representing fractions by only using numbers.
How to draw a rectangular fraction model?The first step is to think about a possible situation or word problem. After this, you can draw the fraction model. For example:
Annie had a total of 20 cookies but she gave 9 cookies to her friends, how many cookies does she have?For this, divide a rectangle in the total of parts (20) and color the total of parts that Annie has (11). This means the total of cookies she has is 11/20.
Learn more about rectangles in: https://brainly.com/question/10046743
Error Analysis A math test asks the students to solve the inequality X-2511, and then graph the
solutions. Mason said the solutions are x s9 and graphed the solutions as shown below. Solve the
inequality and graph the solutions. What error might Mason have made?
What are the solutions?
X
Answer: x < 18
Step-by-step explanation:
x - 2 < 16
We eliminate 2 to isolate the variable, x by adding 2 to both sides. -2 + 2 = 0.
x < 18
We can test this because 17 is less than 18. Pretend x = 17
17 < 18✅
Mason subtracted 2, instead of adding 2.
In order to graph this, put an open circle at 18, and the arrow should point to the left.
Hello, pls help on these exercises
Answer:
c.p= R.s 75 ,loss=R.s 9 solve it
ill give brainliest for attempt help needed
What is an example of how public conduct, even outside of the office itself, can affect one’s job?
Answer:
What is an example of how public conduct, even outside of the office itself, can affect one’s job?
Step-by-step explanation:srry im doing a thing
where i have to do 30 Q to get $300
What is the correct answer for this question?
well, there are 3 feet per 1 yard, so we can say that the field is either
90 feet (30yd) by 48 feet
or
30 yards by 16 yards(48 feet)
90ft * 48ft = 4320 ft²
30yd * 16yd = 480 yd².
Can some pls help me with this problem?
Answer:
1.05 sorry it took so long.
Step-by-step explanation:
15 3 ones x 5 hundredths = 15 hundredths
+ 90 3 ones x 3 tenths = 9 tenths = 90 hundredths
105 hundredths = 1.05
this is what i got from the example on the top. Compare the example with number 2.
Choose the equation of the line in slope-intercept form.
Perpendicular to y = 2x + 9 and has the point (4,-1).
A. y = 2x + 3
B. y = 2x + 9
C. y = -1/2x + 1
D. y = -1/2x + 3
answer:
c. y = -1/2x + 1
steps-explanation:
given sample equation:
y = 2x + 9comparing to the formula of slope intercept form: y = mx + b
[ where m is the slope and b is the y-intercept ]
we can determine here that the slope is 2 and 9 is the y-intercept.
but here we need only the slope.
making the slope perpendicular using: -1/m → 1/-2 → -1/2
formula:
y - y1 = m(x - x1)using the formula: [ here known that y1 is -1 and x1 is 4 ]
y - -1 = -1/2(x - 4)y + 1 = -1/2 x + 2y = -1/2 x + 2 - 1y = -1/2 x + 1Answer:
C) y = -1/2x + 1
Step-by-step explanation:
Equation of a line in slope-intercept form: y = mx + b
(where m is the slope (gradient) and b is the y-intercept)
The slopes of two perpendicular lines are negative reciprocals of each other. So, if the line is perpendicular to y = 2x + 9, then the slope m of the new line will be -1/2.
Therefore, y = -(1/2)x + b
We are told that the line passes through point (4, -1).
Substituting the found value for m the the point (4, -1) into point-slope form:
y - y1 = m(x - x1)
y - -1 = -(1/2)(x -4)
y = -(1/2)x + 1
x/5+7=3
tellme fastplease
Answer:
-20
Step-by-step explanation:
x/5=3-7
x/5=-4
x=-4×5
x=-20
What is the purpose of a financial reserve? saving for retirement O creating an account for discretionary spending saving in case of a financial emergency amassing enough money for a large purchase
Answer:
Assuming you mean like a savings account. A financial reserve is created to save money over time to cover events such as emergency surgery, etc.